wikistats - rm broken namevirtualhost setup

this used to work in the past, but meanwhile
there is no /etc/apache2/conf.d/ anymore, only
./conf-enabled and conf-available

also, since this is behind instance proxy it doesn't
even need to listen on 443

and this creates puppet errors now, remove it

Change-Id: I89b48854f2b89e712f73ad3168c51433b06d1efc
Merge "wikistats - rm broken namevirtualhost setup" into production